/*
* @(#)WBMPImageReaderSpi.java 1.8 09/04/29 07:41:32
*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package com.sun.imageio.plugins.wbmp;
import java.util.Locale;
import javax.imageio.spi.ImageReaderSpi;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.spi.IIORegistry;
import javax.imageio.spi.ServiceRegistry;
import java.io.IOException;
import javax.imageio.ImageReader;
import javax.imageio.IIOException;
public class WBMPImageReaderSpi extends ImageReaderSpi {
private static String [] writerSpiNames =
{"com.sun.imageio.plugins.wbmp.WBMPImageWriterSpi"};
private static String[] formatNames = {"wbmp", "WBMP"};
private static String[] entensions = {"wbmp"};
private static String[] mimeType = {"image/vnd.wap.wbmp"};
private boolean registered = false;
public WBMPImageReaderSpi() {
super("Sun Microsystems, Inc.",
"1.0",
formatNames,
entensions,
mimeType,
"com.sun.imageio.plugins.wbmp.WBMPImageReader",
new Class[] { ImageInputStream.class },
writerSpiNames,
true,
null, null, null, null,
true,
WBMPMetadata.nativeMetadataFormatName,
"com.sun.imageio.plugins.wbmp.WBMPMetadataFormat",
null, null);
}
public void onRegistration(ServiceRegistry registry,
Class<?> category) {
if (registered) {
return;
}
registered = true;
}
public String getDescription(Locale locale) {
return "Standard WBMP Image Reader";
}
public boolean canDecodeInput(Object source) throws IOException {
if (!(source instanceof ImageInputStream)) {
return false;
}
ImageInputStream stream = (ImageInputStream)source;
byte[] b = new byte[3];
stream.mark();
stream.readFully(b);
stream.reset();
return ((b[0] == (byte)0) && // TypeField == 0
b[1] == 0 && // FixHeaderField == 0xxx00000; not support ext header
((b[2] & 0x8f) != 0 || (b[2] & 0x7f) != 0)); // First width byte
//XXX: b[2] & 0x8f) != 0 for the bug in Sony Ericsson encoder.
}
public ImageReader createReaderInstance(Object extension)
throws IIOException {
return new WBMPImageReader(this);
}
}